70. Knewton Inc.

Courtesy of Knewton Inc.

Industry: TechnologyWebsite:knewton.comTwitter handle:@KnewtonYear founded: 2008Marks of distinction: This education-technology operation provides a number of opportunities for learning new skills and acquiring more knowledge, including rotating workers to different teams for a few weeks or months, paying for industry conferences and running quarterly Hack Days for staffers to focus on any project that strikes their fancy.NYC employees: 159U.S. employees: 1642013 revenue: Not disclosed2012 revenue: Not disclosedAverage salary: Not disclosedDays off: UnlimitedHealth care premiums: 75%-99%New positions: 75Layoffs: Not disclosedVoluntary turnover: Not disclosedWith firm five years or more: Not disclosed